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bug#63837: 29.0.91; delete-forward-char error with composed text
From: |
Robert Pluim |
Subject: |
bug#63837: 29.0.91; delete-forward-char error with composed text |
Date: |
Fri, 02 Jun 2023 14:05:17 +0200 |
>>>>> On Fri, 2 Jun 2023 10:42:29 +0000, Thiago Melo <tmdmelo@gmail.com> said:
Thiago> * How to reproduce:
Thiago> 0. Start emacs with `emacs -Q'
Thiago> 1. Create some text composition, e.g. eval: `(insert (compose-chars
?+))'
Thiago> 2. Move cursor to before composed character
Thiago> 3. `M-x delete-forward-char' or press <delete> key
Thiago> * Backtrace:
Thiago> Debugger entered--Lisp error: (wrong-type-argument sequencep t)
Thiago> lgstring-glyph-boundary(t 1 2)
Thiago> delete-forward-char(1 nil)
Thiago> funcall-interactively(delete-forward-char 1 nil)
Thiago> call-interactively(delete-forward-char nil nil)
Thiago> command-execute(delete-forward-char)
How about this (for master, since your example is somewhat contrived :-))
diff --git a/lisp/simple.el b/lisp/simple.el
index 3f88fcb8d03..efe6895fabc 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -1527,9 +1527,11 @@ delete-forward-char
;; character.
((<= to pos)
(1+ pos))
- (t
+ ((vectorp (nth 2 cmp))
(lgstring-glyph-boundary (nth 2 cmp)
- from (1+ pos)))))
+ from (1+ pos)))
+ (t
+ (1+ pos))))
(1+ pos)))
(setq n (1- n)))
(delete-char (- pos start) killflag)))
Robert
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